<!DOCTYPE html>
<html lang="en" xmlns:th="http://www.thymeleaf.org">
<head>
  <meta charset="UTF-8">
  <title>Title</title>
</head>
<body>
<div>
  <form action="/doLogin" method="post">
    <input type="text" name="username"><br>
    <input type="password" name="password"><br>
    <div th:text="${error}"></div>
    <input type="submit" value="登录">
  </form>
</div>
</body>
